Here are details about a :
Space commemorative cover
or Space Cover.
Cosmodrome / Location : USA
Date of Cancellation: Dec. 15, 1960
Event Type : Launch
Launch Pad / Location : USA KSC (FL)
Manned / Robotic Mission : Robotic
Mission Objective/Type : Telecommunications
ou?/where?: au sol - ground
autographe?: non - noneDescription : Project Echo was the first passive communications satellite experiment. Each of the two American spacecraft, launched in 1960 and 1964, was a metalized balloon satellite acting as a passive reflector of microwave signals. Communication signals were bounced off them from one point on Earth to another. Keyword(s) :
#Planet,
#Rocket,
#Satellite,
#Telecommunications, SPACE REVUE : 02 - 2015 Last modified: 06/09/2015 @ 15h06
| Add to cart |
SEE ALSO  |
 |
  |
USA 40 | 26,- |
| |
item shown here with picture. |
| |
items related to the item shown. |
|
 See My Cart |
|
|
Page : future · Ref: USA 40 Space Event : ECHO 1A (SATELLITE) · THOR DM19
|
Pref.
Contact-us
